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Author Question: A lighted candle is 10 m away from a wall. A concave mirror is being used to project an image of the ... (Read 46 times)

vicotolentino

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on: Jul 29, 2018
A lighted candle is 10 m away from a wall. A concave mirror is being used to project an image of the candle onto the wall. If the image is going to be 3.0 times the size of the object, how far should the mirror be from the wall?
 
  A)
 
  6.5 m
  B)
 
  7.0 m
  C)
 
  6.0 m
  D)
 
  5.5 m
  E)
 
  15 m

Question 2

What is the mass of a solid sphere that has a density 15.0  103 kg/m3 and a radius 10.0 cm?
 
  A)
 
  62.8 kg
  B)
 
  4.56 kg
  C)
 
  298 kg
  D)
 
  3.58  106 kg
  E)
 
  15.0 kg


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Koolkid240

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Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

A


vicotolentino

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

AmberC1996

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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